I don't think you'll have to worry about that. When they shut down D23 in late '13 or in '14, it will be many years until they try something like that again, if they ever do.
Just judging by the massive D23 Expo, it's an extremely expensive thing for them to operate and pull off. Disney must have lost a fortune on the whole D23 concept in the last five years.
And what was the point of D23? I got all the insider scoops I need from a few key websites (like this one), anything of interest offered by D23 events is available online almost immediately, and my one splurge was buying a day ticket to the D23 Expo as a Southern Californian for an afternoon stroll through the exhibit halls. If they had been doing truly unique and irreplaceable experiences, it might have been worth it so long as you lived within 100 miles of Disneyland or WDW. But they didn't even really do that, but charged a chunk of cash for it anyway.
So long, D23. You won't really be missed.
Ive been amazed that they did not use the opportunity of the Expo to do a "park buyout" one night. You have every fanboy in the country in one spot all lathered up. Im sure they could print money selling tickets for $300 a pop. The 1 year party at DL looks like it was the best thing they put on so far. Im sure they lost money at $60 a ticket or whatever they charged, but they could jack it up.